Means for fastening rolls to shafts



April 23, A. x. KENNEDY MEANS FOR FASTENING ROLLS To SHAFTS Filed May 7, 1928 2 Sheets-Sheet 1 Z w m. a

April 28, 1931. A. x. KENNEDY MEANS FOR FASTENING ROLLS T0 SHAFTS Filed May 7. 1928 2 Sheets-Sheet 2 g gwuentoz kzZieza/zder life/ ag,

attozuup Patented Apr. 28, 1931 ALEXA-ripen X,- series, 01 ends-s, Piiims vmm see sit-s ssile ln'ofizsno sitters,

unwinaing of the Web material, and more particularly to chucks for insertion in the ends of cores for peperrollsfor securing the selne'to shifts. r, e l r "Such devices, tisziie in general u'se f'or this purposeeonsist generally be tapered bodies 7 fitleptedfto he it'oreed into the ends of the Web coi'e,' but which have proven unsuitable for there'ason that the entire eight of the Web material on these cer sis imposed alt/the ends of the core and upen thetipe'red bodies in s erte'd in these ends; which "Causes the ends o'fthe core t6 bellnrefip and frequentlysplit; thereby permitting play between the'enjds or theco're an'd'the tafp eredbodies of the chucks,

' which c'ziiises the roll (if Web material to bdb.

and weev' 'beck and forthdurin its rotation with detrimental efieqte upon theweb material. It is, therefore; an importa t objeet of this invention {to previde a 'devie'e which will obviate this "objection end ene which may be easily and quickly adjusted" so that it willedapt itself to the irregularities of surface within the core, son's-to :01)-

min a'fir'm driving grip u on the eerie at several points around its 'inner circuniferen'ee without causing the ends of the core to becoine cupped or split. I Another'in'ip'ortant object ofthe invention, resides in the construction and arrangement of parts of the chuck Wherebyfit'nia'y be pn structe'd of minimum weight and size while still possessing the essentiel'streng th;

A stillfurthe'r object Ofith invention resides in the provision of a ehuck of thee-bone character in which the parts" ere interehangee able which not only makes-for a reduction in the cost of manufacture, but facilitates the repair of replacenientofany ofits parts. Other objects and advantages :or the in- 'vention will become apparent during the course of the following deseriptionr In the accompanying drawings forminga,

part of the description, and wherein Y like nu meralsere employed to' .gl like 3' parts throughentetheseveral i xewsz as is usually. einployed formo'unting :rolls of i n w 1 is" a perspectiire eiepleded iview 'ef the chuck; with parts shown inflsection.v Figu'reQ is :5 side elevation of =the-clnicks, showing them 'a'ppiiedfto 51 core a'nd'shaiit. hFigune 3 is. 2. longitudinal section :of one ofthe chucks showing it in positioii upon the shaft, and within one endiofecore. j Figure 'iis a,transversesection10f the sanie taken on the line 'oiigure-ii, and Figure 5 is a ifregmentaryu longitudinal seetlon of one: end of one rchuck illustrating the manner of keying the same to T3 core. Referring now, more. particularly to. the dreyvin-gs, IWh'erein, (for the purpose :of il'lustretionQI have shown one; example. of nij -improved h u c'k, thenumeral 5 designetesanele inent which is adapted to bem'ountedlupon' and fixed'to n shaft :6 for rotation therewith; and in the present instance is illustrated in the form Jofja cylindrical iron core .shell,.*such we'hmaterial to be Wound or'unwound there- -fr01n.= I .m V Thejchucks comprising iny present inven-. tion areidesignatedingeneral by the numeral 7, end one ofqthe'se hucks is adapted to he inserted int-0 eeeh end i of the core 5 for abutn'ent-fwith the ends "thereof and secured to the shaft 6 it'or'rotation therewith, so as to impart rotaryniovement to the core. As the chucks foropposite ends of the core, are

of the same construetion;edescription of: one

These .chu' cks each. comprise a cylindrical tubulerbody portionj8, which possesses an outside diameter; closely approximating the inside diameter ofjth core 5, so that itmeiy e be, readily slipped into the *end of the. seine, and eniin'si de diameter toisnuglyendslidabl'y fit upon the shaft 6. This she-ft Bis equipped with a key 9; and the body of the ehuck'with a, longitudinally extending :keyiseat: 10 .for thereiception ofthe-key for fixing thebody ripo'mthe shaft'twhile perinit tingit to slide longitudinally thereof This key seat 10 of the body, obviouslyrextends throughout the entire length" thereof to permit the rlhuck beingamoved longitudinally 'ofithesheft and into the endot the ore:5..,;- I

e jwet the ester:end ettheNeedy per a kerf or slot providedin the end ofthe core to establish a positive driving connection between the chuck and core. An opening 13 smaller than the recess 12 extends from the inner portion of the latter to the outer face of the flange 11 and is adapted to be aligned with an opening 14'. extendingfentirely through an adjusting collar 23 in, order that a suitable tool; or instrument: may be moved into aligned'openings'13 and 14 to force the key. 12: out of its recess 12 when the chuck is unassociated with a core, should re-- placement of the key be necessary.

- Beyond and outwardly of the annular flange 11, the body of the chuck is reduced and extended, as at 13*for a purpose which will be later described.

The exterior surface of the main body portion. 8 is provided with a plurality .of in-- wardly tapered longitudinally extending wedge grooves 14 arranged, equidistantly around the circumference and spaced. apart about 120 in order that three of such grooves will be provided, although it is, of course, understood that a smaller or larger number of grooves'may be formed without departing from the scope of this invention. The deepest part of each groove 14 is disposed adja: cent the inner end of the body portion while thelshallower portions are disposed adjacent the outerpart or annular flange 11, and arearranged in' alignment. with dove-tailed grooves 15 extendinglongitudinally throughout the reducedportion 13 of the body and into the main body portion 8 to a depth greater than the outer ends of the tapered grooves 14 to provide ledges or-shoulders 16 at the juncture of the grooves 14 and 15. The grooves 15 are, of course parallel with the axis of the chuck, and donot taper as do the grooves14: .The-latter grooves are. likewise of dove-tailed shape, so asto provide overhanging side edges to prevent accidental displacement of wedges 17, whichare adapted to slide longitudinally therein, while moving radially of the chuck, due to the inclined bottoms of the grooves 14. "I

These wedges 17 are shaped withedges to fit the dove-tailed grooves 14, and-are provided with concave inner surfaces and convex outer surfaces toconform to the bottoms of the grooves 14 and to the exterior surface of the main body portion of the chuck. In

Fig. 3, it will be observed that the innerlsmall- 'er' ends 'of the Wedgesproject beyond the tive groove 15, and outer convex surfaces,

which project beyond the exterior surface of the reduced body portion 13. The exteriorsurfaces of these segments 20, are all provided with corresponding screw thread ed portions 21 for. a purpose which will be presently described. The connection of the segment knuckles20. with the wedgesl7, provides in effect, an offset at the shoulder 16,

which not only makes for the compactness of the chuck, but for the reduction in expenditure for replacement of the segments 20, should their threads become impaired in use. Inview of the flexibility or loose and detachable connection between the segments 20. and the wedges, and the fact that these two parts are interchangeable with corresponding parts, enables a .reductionin the expense in replacing or repairingthese parts when they become unfit for use, since a segment may be replaced without necessitating the replacement ofa good cooperating wedge 17, or vice versa.

Of course, the integral annular flange 11 of the chuck is provided-with openings 20, di-

rectly above the grooves to provide space for the. operation andv movement of the outer smaller ends of the wedges 17,'when they are actuated by the segments to move them radially and outwardly of the chuck during their expanding movement. vThese wedges 17 will be hereinafter referred to as an expan-' sive and contractile instrumentality mounted upon the body of the chuck. t is obvious that when the segments 20 are moved inwardly of the chuck that corresponding move ment is imparted to the wedges 17, thereby effecting a contraction of the instrumentality,

whereby the chuck may be readily inserted into thecore 5. r

The means for. operating the expansive and contractile instrumentality consisting of the wedges 17, comprisesfan internally screw threaded collar 23-rotatably mounted upon the reduced extension 13 of the body to en-.

.gage'the threads 21 ofthe various segments for moving them togetherwith the wedges 17 outwardly or inwardly of the chuck. Means are provided for rotatably interlocking this collar 23 to the'flange 11 of the chuck, and

consists of a plurality of V-shaped lugs 24 extending from theinner faceof the collar 23, and are rotatably associated with an internal V-shaped annular groove 25, arovided in the flange 11. As clearly seen in., Ifigs. .1 and .3,

Lasers the-latter isequipped with a plurality of ra diallydisposed clove-tailed ways orslots 26-, corresponding in number to the number of lngs 24: proy'ide'd upon the ;-colla r-, and of a width to admit these lugs upon movementof the collar toward :the flange 11;: After the lngs24; have been insertedthrough the ways 26, the adjusting, i-colla'r is given a" partial turn on the axis'of the; chuck, so as to cause theselngs 2% tolpa'ss into the annular groove;

, 25and-interlock the collar withthe flange.

Thereafter, f arcuate k dove-tailed filler I blocks 27 "are'flttedfinto the ways 26 to completely close the same, andscrewfs 28 are screwed lengthwise into the joint between these blocks andtheflange-ll to securely maintain them iii-place and against accidental radial displacement; The inner surface of each flller block-2'1 is equipped with an arcuate V- shapedgroo e '28, so thatiwhen these blocks are I inserted; into the ways' 26, the grooves '28 form r 'a' continuation of v the internal. groove 25;"whereby the collar :23 -may be turned through a complete revolution without danger of its axial displacement. Radial pin wrench openings-29 are provided in;the;eXterio-r surface of the adjustinglcollar 23; whereby a wrench or other "instrument may be inserted to "facilitate rotation of the collarin either direction; v L W V In order to-prevent the chuck froinslipping longitudinally upon the shaft 6 and;v to maintain the flange 11 in engagement with the end ,ofthe co're 5, means are provided in the chuck for engaging the key 9 of theshaft 6. This means consists broadly of a machine screw 30, threaded radially through the v flange 11 for engagingthe outer surface of I the key-10. ;;Similar screws have been pro- I vided-heretofore, but which have been threaded directlyinto the chuck body withtheresult that when the vthreads become worn or damaged, it is necessary to retap the threaded opening and'pro'vide a -"slightly larger screw. Asperiodicre-tappings are 1nade, the

screw opening becomes so large as torender the chuckunfit for further use; the improvements which I will nowdescribe are designed to'elinrlinate thisshortcoming of previous Thexflange ll isprovided with a radially extending opening 31, which extends entire,- ly through the inner-surface of the chuck, and

a removable interiorly threaded screw bush iiig 32 is fitted; into theopening; 31 to receive the ihaehirie -FSGLEW':3Q; "whiclnis adapted to bear against thekey 9. In order to securely ias'iii imitat n tame the Openin as at the; same time enable 'its removal for re.-

- placement when nec essary, the outer end of the bushingis eqilippedwith a pair of diametrically and outwardly extending wings -3 3,;Which are adapted topass'throughithe key-hole onteriend of the openiiig 31 formed by providing the onter end or. the opening I with diametrically disposed recesses 34, after whichthe bushing giyen a half turn to dispose the wings 331 within diametrically disposed undercut portions 35 of the opening.

A pai-rfof filler blocks;.36 shown in Figs, 2 andfl, arethan inserted into the recess 34 of r the flange to completelyfill the same, and are removablysecured thereinby screws 37 pass- I ingthf rough th-e fillerblocks and into threaded openings in the bottoms of the recessi34.

The screw 30 may then be driven home to bind 'fupon the key= 9, and thereby secure the bushing against longitudinal sliding ment'upon the "shaft 6. Q h Inorderlto mountthe chuck upon ashaft and within theend of the core 5, the adjustmove ing collar isrotatedin a direction tocause the-wedges l'jZ tomovetowardthe inner end otthebody portion'8',-tl1ereby contracting the expansive; and contractile instrumentalities,

in order that the chuck, after: having been ida on he h t mane i b' ap tionS; slipped into theend of the core 5 with thecdowel'12 fitting the kerf in the end of "the-core, and the flange i1 abutting the end of the core 5. Ihe m achine screwBQis then driven home upon the key 9 topreV entaccidental axial; movement along the shares, The adjusting collar 23 is then turned in the opposite;directiong with its lugs 24 inoying a througlrthe annular. groove 25 -inthe flange, so as tocause the threaded segments 2O to move ontwardly of the chuck and end of the coredrawin'gwith themthe wedges l7,' thereby causing the, latter to move radially and expand into firmbearing contact with the inher snrfaceof the core atwhichitiine the chuck is then securely locked upon-the shaft, andis securely and flrmly engaged with the innerysurface of the core, so as to cause its rotationwiththe chuck and shaft to either wind upon or unwind web material from the core.-.j

Of course, it be obvious that my improved chuck is not limited to its use in connection with cores forweb material, but is of general application as a means of coupling one member to another. a

Various changes inthe size, -shape and arrangement of the various parts may be resorted to without cdeparting from the spirit of the, invention or the scopeof the appended claims.

bemdunted upon a shaftand inserted into a cylinder, said body having an integral flange portion and provided with offsetoperating' means adjacent the larger partof saidtapered portion, and an adjusting m'emberrotatably mounted upon said body andbeing operably connected to; said offset operating means whereby rotation of said member in one direction will, cause 'movement of said wedge member outwardly of saidbody and toward the larger part of said tapered portion'.

v 3. A chuck comprising a body, said body having an integral flange, said flange being provided with an'internal groove, an expansive and contractileinstrumentality carried by said body, an adjusting collar rotatably mounted upon said body foractuating said instrumentality, and said collar having means operating in said internal groove for rotatably' interlocking said collar and flange.

chuck comprising a body, said body having an integral flange, said flange being provided with an-internal groove, an expansive and contractile instrumentality carried by said body, an adjusting collar rotatably mounted upon said body for actuating. said instrumentality, and said collar having a plurality of lugs arranged for rotation in said internal groove. for rotatably interlocking said collar and flange;

5. A chuck comprising a body, said body having an integral flange, said flange being provided withan internal groove and ways leading into said groove,- an' expansive and contractile "instrumentality carried by said body, an adjusting collar rotatably mounted upon said body for actuating said instru-.

mentality, and said collar having a plurality of lugs for passage through said ways tooperate in said internal groove, and means for closing said ways to rotatably interlock said collar and flange.

6. Archuck comprisin a body, said body having an integral flange, said flange being provided with an internal annular V-shaped groove, an expansive and contractile instrumentality carried by said body, an adjusting collar rotatably mounted upon said body for actuating said instrumentality, and said collar having a plurality of V-sh'aped lugs ar ranged for rotation in said internal groove for rotatably interlocking said collar and flange. r V 7 7. A chuck comprising a b0dy,said body ably mounted upon said body for actuating said instrumentality, said collar having a plurality of lugs for passage through sa1d said ways to retain said lugs within said groove. 1

' 8. A chuck comprising a body,-said body having an integral flange,'said' flange being provided with an internal annular groove and ways leading into said groove, an ex pansive and contractile instrumentality carried by said body, an adjusting collar rotatably mounted upon said bodyfor actuating said instrumentality, said collar having 'a plurality of lugs for passage through said ways to operatein said internal groove, and removable filler blocks closing said ways and having grooves to align with and form continuations of said internal groove.

9. A chuck comprising a body adapted to be mounted upon a shaft and frictiona-lly engaged with a cylinder, an expansive and contractile'instrumentality carried by said body for engaging the inner walls of said cylinder, a-removable screw mounting mounted in said body, and a screw associated with said mounting for keying said body to said shaft.

"10. A chuck comprising a body adapted to bemounted upon a shaft and inserted into a cylinder, said body having stationary means for abutment with the end of said cylinder, an expansive and contractile instrumentality carried by said body for frictionally engaging said cylinder, said body having an opening with interlocking means, a'removable bushing mounted in said opening, means cooperating with said interlocking means to releasablyretain said bushing in said opening, and a screw mounted in said bushing for fixing said body upon said'sh'aft.

11. A chuck comprising a body adapted to.

be mounted upon a shaft and inserted into a cylinder, said body having stationary means for abutment with the end of said cylinder, an expansive and contractile instrumentality carried by said body for frictionally engaging said cylinder, said body having an opening formed with a key-hole mouth,a remov-- able'bushing mounted in said opening and having a pair of interlockingwings for interlocking engagement with said key-hole mouth, and a screw mounted in said bushing for securing said body upon said shaft.

12. A chuck comprising a body, a plurality of longitudinally movable wedges slidably mounted upon said body, an adjusting member rotatably mounted. upon said body, and

interchangeable means connected to' said wedges and operatively connected to said adways to operate in said internal groove, and I removable dove-tailed-filler blocks closing recesses and operatively connected to said' member, said interchangeable means having threads by which the wedges are moved. I 14:- A chuck comprising a body, a plurality of wedges slidablymounted upon said body and provided with recesses, an internally threaded collar rotatably mounted upon said body, interchangeable threaded segments slidably mounted upon said body for cooperation with the threads of saidcollar, and said interchangeable segments having angularly disposed ends fitting said" recesses of said Wedges.

15. A chuck comprising a body, said body having a groove with an inclined bottom, a

second groove in alignment therewith and forming a shoulder therewith, a wedge member slidably mounted in saidfirst groove with its smaller end projecting over said shoulder and provided with a recess, and means for sliding said wedge including aimember slid ably mounted in said second groove and hav- 7 ing a projection entering said recess.

16. A chuck comprising a cylindricalbody portion provided with a longitudinally ex tending groove, said body having an integral flange provided with an opening in alignment with said groove, an adjusting collar rotat- 1 ably mounted upon said body, and a wedge member slidably mounted in said groove and extending through the opening in said flange to be operatively connected to said collar;

17 A chuck comprising a body, a plurality of wedges slidably mounted thereon, an internally threaded collar rotatably mounted upon 7 said body, and slidable threaded segments cooperating with said collar and having loose connections withsaid wedges, the threads of said segments'cooperating with the collar to move said wedges.

In testimony whereof I have hereunto set my hand. 7

ALEXANDER X; KENNEDY. 

